Sine calculator to easily calculate the sine function of any angle given in degrees or radians. ➤ Calculate sin(x) with this trigonometry calculator. Sin angle calculator with degrees and radians.
sinθ= 1 / cscθ Double anglesin 2θ= 2 sinθcosθ Angles sumsin(α+β) = sinαcosβ+ cosαsinβ Angles differencesin(α-β) = sinαcosβ- cosαsinβ Sum to productsinα+ sinβ= 2 sin [(α+β)/2] cos [(α-β)/2] ...
Use x=r cos θ and y=r sin θ to prove that r=x sec θ and r=y csc θ.相关知识点: 试题来源: 解析 x=r cos θ( cos θ )=rx⋅ 1( cos θ )=rx sec θ =ry=r sin θ(sinθ )=ry⋅ 1(sinθ )=ry csc θ =r...
θcotθsinθ=cscθ To verify the identity, start with the more complicated side and transform it to look like the other side. Choose the correct transformations and transform the expression at each step. tanθcotθsinθ=tanθsinθ
Answer to: Use identities to simplify the following expression as much as possible: (cos theta + sin^2 theta sec theta)/(sec theta csc theta) By...
Use identities to rewrite the following expression as {eq}\sin \theta, \cos \theta, \tan \theta, \csc \theta, \sec \theta, \text{or} \cot \theta {/eq}. {eq}\dfrac{-\cot^2 \theta - \sin^2 \thet...
A short message service (SMS) intervention to prevent diabetes in Chinese professional drivers with pre-diabetes: a pilot single- blinded randomized controlled trial. Diabetes Res Clin Pract. 2013;102(3):158-166.Wong CKH, Fung CSC, Siu SC, et al. A short message service (SMS) intervention...
莲花闹海棠_03,豆瓣高分,口碑佳作,电视剧剧情:80年代末期,北碚水土镇是一个以农业为主的穷困乡镇,为了发家致富,村干部积极寻求农村产业结构,在政府的扶持下,把农业为主的产业转变为以渔业为主,这个消息在村民中产生巨大震动。村里有两...
Answer to: Convert the following polar equations to Cartesian coordinates: (a) r = 3csc\theta (b) r = \frac{1}{2cos \theta + 3 sin \theta} By...